Two penalties and a deflected strike earned Lincoln a commanding 3-0 win over 10-man Blackpool at the LNER Stadium and moved them up to second in Sky Bet League One.
Daniel Mandroui opened the scoring from the spot inside seven minutes after Ben House was brought down in the Blackpool area.
Goalkeeper Lukas Jensen saved from Seasiders debutant Jordan Rhodes when he was through one-on-one and as the rebound fell to CJ Hamilton, the winger could only volley over with the goal gaping.
Five minutes before the break, Ethan Erhahon doubled his side’s advantage. He travelled to the edge of the visitors box and saw his shot flick off Marvin Ekpiteta’s legs before nestling into the far corner.
Oliver Norburn was given his marching orders with 17 minutes to play after fouling House in front of an open goal.
Substitute Teddy Bishop slammed home the resulting penalty to seal the points and extend the Imps’ unbeaten run to four, with Blackpool winless in the league since opening day.
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